This is a complete Stag Arms 5.56(Cal.223) Tactical Lower Half. Lower has the 6-Position Tactical Carbine stock. All you have to do is quickly pin on the upper and you are ready to go. All Stag Arms receivers are made of forged 7075 T6 Aircraft quality Aluminum. The are all bead blasted and coated with TYPE III CLASS 2 HARD COAT to insure strength, and durability. Credit card buyers please e-mail for card details before purchase. Many additional photos on request.